PlotX Version 1.0.0

Created by Richard Hayden. Copyright (c) 2000 Richard Hayden. All Rights Reserved.

A piece of software designed for plotting graphs and then making comparisons between the graphs. Up to eight graphs can be plotted at the same time.

You may e-mail the author of this program, Richard Hayden at r_hayden@hotmail.com, with any problems, suggestions or queries!


Warning: This program is protected by copyright law in the U.K.

It is therefore Copyright (c) 2000 Richard Hayden. All Rights Reserved.

The expressions in this program are evaluated using Microsoft's Script Control 1.0. All related copyrights and trademarks obviously belong to them.

You may distribute this program, as long as it or any accompanying documents or files are NOT modified in anyway and all files and documents are contained in the package in which you distribute it. You must also not be selling or making money from this program in anyway.

THIS PROGRAM IS COMPLETELY FREEWARE!


HOW TO USE:

First install by simply, double clicking on setup.exe.

IF YOU DO NOT HAVE THE VISUAL BASIC 6.0 RUNTIME FILES, THEY ARE NOT INCLUDED IN THIS ZIP FILE AND YOU WILL NEED THEM
TO RUN THIS APPLICATION, YOU MAY GET THEM FROM, SIMTEL.NET'S, /simtelnet/win95/dll DIRECTORY.

First of all, thanks for choosing to use Richard Hayden's PlotX!

This program is useful for students or other investigating or doing work related to graphing functions like, y = 2 * x
etc. It will allow you to plot any graphs of y = a(x * x) + bx + c. You can plot up to eight different expressions at a time.
These are all in seperate colours, allowing ease of legibility and comprehension of which expression equals which graph.

To use, simply select which 'expression bank(s)' you wish to have active by clicking the checkboxes on and off. Then enter the
expressions for the graphs which you would like to plot in the corresponding text box.

Next, select your scale. The larger the scale, the longer the graph takes to draw, but the more you see of the graph. Then click,
'DRAW GRAPH(S)' when you are ready, and sit back while your graphs are rendered and drawn.

You can change the accuracy and speed of the graph rendering and drawing process, by click 'ACCURACY/SPEED'.

Click on the PlotX logo, in the bottom right hand corner of the screen to see the about dialog for PlotX.

Thanks again for choosing PlotX!


If you have any queries, bugs or suggestions please e-mail them to r_hayden@hotmail.com.

For errors, please follow the instructions on the applicable error dialog, when the error happens.


SYNTAX:

Below, is the general syntax for the expression engine. (Microsoft Script Control 1.0).

It is very similar to VBScript expression syntax.

The only available variable is 'x'. All other labels (which are not part of built in functions etc.) will just have a value of 0.

Any errors in the syntax, will result in a simple expression error.

addition = +
subtraction = -
division = /
multiplication = *
parantheses = ()
tangent = tan()
sine = sin()
cosine = cos()
square route = sqr()
power = ^
variable 'x' = x

I'm sure there are many more, experiment with any functions you know of, and you will just get an expression error if they don't exist.
